README file for Replication Programs and Data for "Urban Transport Expansions and Changes in the Spatial Structure of US Cities: 
Implications for Productivity and Welfare" to be published in the Review of Economics and Statistics. 

Nathaniel Baum-Snow, University of Toronto
July 22, 2019

The data and code are zipped up into the archive baumsnow_restat_2019.tar.

All code was written in Stata, and runs successfully on Stata 14, Stata 15 and Stata 16.

In the root directory of this archive is master.do, which runs all of the dofiles required to rebuild the data. 
It also calls ./estind/master-estimation.do which runs all of the dofiles required to generate results in the paper. 
To replicate everything, simply run master.do.

These two master dofiles are commented with information about what each of the dofiles called by them do. 
All dofiles generating results for numbered tables and figures are named accordingly. 
For more information, please see the comments in master.do and master-estimation.do.

All of the root data sets are included, except the following files, which are too large:

2000 Census Transportation Planning Package State Files, Part 1 (place of residence) (51 files)
2000 Census Transportation Planning Package State Files, Part 2 (place of work) (51 files)
2000 Census Transportation Planning Package State Files, Part 3 (commuting flows) (51 files)

The output datasets after processing and the code that processes these data sets are included. 
These data set can be downloaded from the Bureau of Transportation Statistics website.

The included directories all include various aspects of the data except ./estind which holds the results. 

The main data set used for estimation is ./buildind/data/gen/panel-6000ind.dta. 
Relevant variables in this data set are labelled.

Data Sources:

./buildind/data/src has source data on the number of roads of various types serving each city in 1950, 1960 and 2000.

./ccdb/data has data from the City and County Data Books for 1940-1970 and the City Data Books from 1990 and 2000.

./census_pdfs has data from various tabulations of the 1960 census data for cities. The included Readme file in this directory
explains them in more detail.

./ctpp has data from the 2000 Census Transportation Planning Package, pw for place of work and res for place of residence.

./gisind has various GIS data that indicates for each microgeographic region its CBD distance and which SMSA and city it falls into.

./tracts has 1960 census tract tabular data, include the Bogue file, the Census released file and an extract from NHGIS.